/* roulang page: index */
:root {
      --sand: #7A5A3A;
      --sand-light: #A67C52;
      --gold: #C9A227;
      --cream: #F8F4EE;
      --white: #FFFFFF;
      --ink: #2E2A24;
      --ink-secondary: #6B5F53;
      --muted: #A99E92;
      --border: #E5DDD2;
      --input-border: #DCCDB8;
      --error: #B5473A;
      --radius-card: 16px;
      --radius-btn: 9999px;
      --shadow-card: 0 8px 30px rgba(80,60,40,0.08);
      --shadow-card-hover: 0 14px 40px rgba(80,60,40,0.16);
      --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
      --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--cream);
      color: var(--ink);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    button,
    input,
    textarea {
      font-family: inherit;
      font-size: inherit;
    }
    .container-x {
      max-width: 1152px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }
    @media (min-width: 640px) {
      .container-x {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
      }
    }
    @media (min-width: 1024px) {
      .container-x {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    /* 悬浮胶囊导航 */
    .site-header {
      position: fixed;
      top: 1rem;
      left: 50%;
      transform: translateX(-50%);
      z-index: 50;
      width: calc(100% - 2rem);
      max-width: 1152px;
    }
    .site-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 0.5rem 1rem;
      background: rgba(255, 255, 255, 0.7);
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      border-radius: 9999px;
      border: 1px solid rgba(255, 255, 255, 0.4);
      box-shadow: 0 4px 24px rgba(80, 60, 40, 0.08);
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--sand);
      white-space: nowrap;
      letter-spacing: 0.02em;
    }
    .nav-logo-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--gold);
      flex-shrink: 0;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0.25rem;
      list-style: none;
    }
    .nav-links a {
      display: inline-block;
      padding: 0.4rem 1rem;
      border-radius: 9999px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--ink-secondary);
      transition: background-color .2s ease, color .2s ease;
    }
    .nav-links a:hover {
      background: rgba(166, 124, 82, 0.12);
      color: var(--sand);
    }
    .nav-links a.active {
      background: var(--sand-light);
      color: #fff;
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      padding: 0.5rem 1.25rem;
      border-radius: 9999px;
      background: var(--sand);
      color: #fff;
      font-size: 0.9rem;
      font-weight: 600;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
      white-space: nowrap;
    }
    .nav-cta:hover {
      background: #5E452C;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(90, 70, 50, 0.2);
    }
    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
      border-radius: 8px;
      color: var(--sand);
    }
    @media (max-width: 767px) {
      .nav-links,
      .nav-cta {
        display: none;
      }
      .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }
      .site-nav {
        flex-wrap: wrap;
      }
      .site-nav.mobile-open .nav-links {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding-top: 0.5rem;
        gap: 0.25rem;
      }
      .site-nav.mobile-open .nav-links a {
        width: 100%;
        text-align: center;
        padding: 0.6rem 1rem;
      }
      .site-nav.mobile-open .nav-cta {
        display: flex;
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
      }
    }

    /* 按钮 */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.7rem 1.6rem;
      border-radius: 9999px;
      background: var(--sand);
      color: #fff;
      font-weight: 600;
      font-size: 0.95rem;
      border: none;
      cursor: pointer;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
    }
    .btn-primary:hover {
      background: #5E452C;
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(90, 70, 50, 0.18);
    }
    .btn-primary:active {
      transform: translateY(0);
      background: #4E3820;
    }
    .btn-primary:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.5);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.7rem 1.6rem;
      border-radius: 9999px;
      background: transparent;
      color: var(--sand);
      border: 1.5px solid var(--sand-light);
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: background .2s ease, transform .2s ease, border-color .2s ease;
    }
    .btn-secondary:hover {
      background: rgba(166, 124, 82, 0.1);
      border-color: var(--sand);
      transform: translateY(-2px);
    }
    .btn-secondary:active {
      transform: translateY(0);
      background: rgba(166, 124, 82, 0.18);
    }
    .btn-secondary:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.5);
    }

    /* Hero */
    .hero-section {
      background-color: var(--ink);
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      position: relative;
      min-height: 88vh;
      display: flex;
      align-items: center;
    }
    .hero-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(46, 42, 36, 0.88) 0%, rgba(90, 70, 50, 0.55) 50%, rgba(46, 42, 36, 0.25) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      padding: 6rem 0 4rem;
    }
    .hero-title {
      font-family: var(--font-serif);
      font-size: clamp(2.25rem, 5vw, 3.5rem);
      font-weight: 700;
      line-height: 1.2;
      color: #fff;
      max-width: 720px;
      letter-spacing: 0.02em;
    }
    .hero-subtitle {
      margin-top: 1.5rem;
      font-size: 1.125rem;
      color: rgba(255, 255, 255, 0.88);
      max-width: 560px;
      line-height: 1.8;
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-top: 2.5rem;
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.2);
      max-width: 560px;
    }
    .hero-badge {
      display: flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.92);
      background: rgba(255, 255, 255, 0.1);
      border-radius: 9999px;
      padding: 0.35rem 0.85rem;
      backdrop-filter: blur(4px);
    }
    .hero-badge .dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--gold);
    }

    /* 板块标题 */
    .section-label {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--sand-light);
      text-transform: uppercase;
      margin-bottom: 0.5rem;
    }
    .section-title {
      font-family: var(--font-serif);
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      font-weight: 700;
      line-height: 1.3;
      color: var(--ink);
      letter-spacing: 0.02em;
    }

    /* 痛点区 */
    .pain-block {
      display: flex;
      flex-direction: column;
      gap: 2rem;
    }
    @media (min-width: 1024px) {
      .pain-block {
        flex-direction: row;
        align-items: flex-start;
      }
      .pain-block .pain-copy {
        flex: 0 0 40%;
      }
    }
    .pain-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .pain-list li {
      display: flex;
      gap: 0.75rem;
      align-items: flex-start;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 1.25rem 1.5rem;
      box-shadow: var(--shadow-card);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .pain-list li:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-card-hover);
    }
    .pain-icon {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      border-radius: 10px;
      background: rgba(201, 162, 39, 0.14);
      color: var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }

    /* 解决方案区 */
    .solution-row {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2rem;
      align-items: center;
      padding: 2.5rem 0;
      border-bottom: 1px solid var(--border);
    }
    .solution-row:last-child {
      border-bottom: none;
    }
    @media (min-width: 1024px) {
      .solution-row {
        grid-template-columns: 1fr 1fr;
      }
      .solution-row:nth-child(even) .solution-img {
        order: 2;
      }
      .solution-row:nth-child(even) .solution-text {
        order: 1;
      }
    }
    .solution-number {
      font-family: var(--font-serif);
      font-size: 3rem;
      font-weight: 700;
      color: var(--gold);
      line-height: 1;
      opacity: 0.7;
    }
    .solution-title {
      font-family: var(--font-serif);
      font-size: 1.4rem;
      font-weight: 600;
      margin-top: 0.5rem;
      color: var(--ink);
    }
    .solution-desc {
      margin-top: 0.75rem;
      color: var(--ink-secondary);
      line-height: 1.8;
    }
    .solution-img {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: transform .3s ease, box-shadow .3s ease;
    }
    .solution-img:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
    }
    .solution-img img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }
    @media (min-width: 768px) {
      .solution-img img {
        height: 260px;
      }
    }

    /* 成果区 */
    .results-section {
      background: var(--ink);
      color: #fff;
    }
    .results-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      text-align: center;
    }
    @media (min-width: 768px) {
      .results-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }
    .result-number {
      font-size: clamp(2rem, 4vw, 3.5rem);
      font-weight: 700;
      color: var(--gold);
      font-family: var(--font-serif);
      line-height: 1.2;
    }
    .result-label {
      margin-top: 0.5rem;
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.75);
    }

    /* 证言区 */
    .testimonial-card {
      background: var(--white);
      border-radius: 20px;
      box-shadow: var(--shadow-card);
      padding: 2rem;
      position: relative;
      max-width: 680px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .testimonial-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
    }
    .testimonial-quote-mark {
      font-family: var(--font-serif);
      font-size: 4rem;
      color: var(--gold);
      line-height: 1;
      opacity: 0.6;
      height: 2rem;
    }
    .testimonial-text {
      margin-top: 1rem;
      font-size: 1.05rem;
      line-height: 1.9;
      color: var(--ink);
    }
    .testimonial-author {
      margin-top: 1.5rem;
      font-size: 0.9rem;
      color: var(--ink-secondary);
      text-align: right;
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 0.5rem;
    }
    .testimonial-author .avatar {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--sand-light);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.85rem;
      font-weight: 600;
    }

    /* 最新动态卡片 */
    .news-card {
      background: var(--white);
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-card);
      transition: transform .2s ease, box-shadow .2s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
      position: relative;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .3s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.03);
    }
    .news-tag {
      display: inline-block;
      padding: 0.2rem 0.7rem;
      border-radius: 9999px;
      background: rgba(166, 124, 82, 0.14);
      color: var(--sand);
      font-size: 0.78rem;
      font-weight: 600;
    }
    .news-title {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      line-height: 1.5;
      color: var(--ink);
      margin-top: 0.65rem;
      transition: color .2s ease;
    }
    .news-card:hover .news-title {
      color: var(--sand);
    }
    .news-excerpt {
      font-size: 0.9rem;
      color: var(--ink-secondary);
      line-height: 1.7;
      margin-top: 0.5rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--muted);
      margin-top: auto;
      padding-top: 1rem;
    }

    /* FAQ */
    .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 16px;
      margin-bottom: 0.75rem;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: box-shadow .2s ease;
    }
    .faq-item:hover {
      box-shadow: var(--shadow-card-hover);
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      padding: 1.25rem 1.5rem;
      cursor: pointer;
      background: none;
      border: none;
      width: 100%;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--ink);
    }
    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(166, 124, 82, 0.12);
      color: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      font-weight: 600;
      transition: transform .3s ease, background .3s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--sand);
      color: #fff;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease, padding .35s ease;
      padding: 0 1.5rem;
    }
    .faq-item.open .faq-answer {
      max-height: 400px;
      padding: 0 1.5rem 1.25rem;
    }
    .faq-answer p {
      color: var(--ink-secondary);
      line-height: 1.9;
      font-size: 0.95rem;
    }

    /* CTA 表单 */
    .cta-form {
      background: var(--white);
      border-radius: 20px;
      box-shadow: var(--shadow-card);
      padding: 2rem;
    }
    .cta-form label {
      display: block;
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--ink);
      margin-bottom: 0.4rem;
    }
    .cta-form input,
    .cta-form textarea {
      width: 100%;
      border: 1px solid var(--input-border);
      border-radius: 12px;
      padding: 0.7rem 1rem;
      font-size: 0.95rem;
      background: var(--white);
      color: var(--ink);
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    .cta-form input:focus,
    .cta-form textarea:focus {
      outline: none;
      border-color: var(--gold);
      box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.25);
    }
    .cta-form .form-group {
      margin-bottom: 1.25rem;
    }

    /* Footer */
    .site-footer {
      background: var(--ink);
      color: rgba(255, 255, 255, 0.75);
      font-size: 0.9rem;
    }
    .site-footer a {
      color: rgba(255, 255, 255, 0.65);
      transition: color .2s ease;
    }
    .site-footer a:hover {
      color: var(--gold);
    }
    .footer-title {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 1rem;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 1.5rem;
      margin-top: 2rem;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.45);
      text-align: center;
    }

    /* 通用卡片 hover */
    .hover-lift {
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .hover-lift:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
    }

    /* 输入框 placeholder */
    ::placeholder {
      color: var(--muted);
    }

/* roulang page: category1 */
:root {
            --sand: #7A5A3A;
            --cocoa: #A67C52;
            --gold: #C9A227;
            --cream: #F8F4EE;
            --ink: #2E2A24;
            --ink-soft: #6B5F53;
            --ink-mute: #A99E92;
            --line: #E5DDD2;
            --radius-card: 1rem;
            --shadow-card: 0 8px 30px rgba(80, 60, 40, 0.08);
            --shadow-hover: 0 14px 40px rgba(80, 60, 40, 0.16);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--cream);
            color: var(--ink);
            font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container-x {
            max-width: 72rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container-x {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-x {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section {
                padding-top: 5.5rem;
                padding-bottom: 5.5rem;
            }
        }

        .font-serif-cn {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
        }

        /* Header & Nav */
        .site-header {
            position: fixed;
            top: 0.75rem;
            left: 0;
            right: 0;
            z-index: 50;
            padding: 0 1rem;
        }

        .site-nav {
            max-width: 72rem;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: 999px;
            padding: 0.5rem 1rem 0.5rem 1.25rem;
            box-shadow: 0 4px 24px rgba(80, 60, 40, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.55);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--ink);
            white-space: nowrap;
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            letter-spacing: 0.01em;
        }

        .nav-logo-dot {
            width: 0.6rem;
            height: 0.6rem;
            border-radius: 9999px;
            background: var(--gold);
            flex-shrink: 0;
            box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.18);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 0.4rem 0.8rem;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-soft);
            transition: background .2s, color .2s;
        }

        .nav-links a:hover {
            color: var(--sand);
            background: rgba(166, 124, 82, 0.1);
        }

        .nav-links a.active {
            background: rgba(166, 124, 82, 0.15);
            color: var(--sand);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            background: var(--sand);
            color: #fff;
            border-radius: 999px;
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
            font-weight: 500;
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(122, 90, 58, 0.25);
            transition: background .2s, transform .2s, box-shadow .2s;
        }

        .nav-cta:hover {
            background: #5E452C;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(122, 90, 58, 0.3);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--ink);
            padding: 0.35rem;
            border-radius: 0.5rem;
        }

        .menu-toggle:focus-visible {
            outline: 2px solid var(--gold);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--sand);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 0.8rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            box-shadow: 0 6px 20px rgba(122, 90, 58, 0.22);
            transition: background .2s, transform .2s, box-shadow .2s;
        }

        .btn-primary:hover {
            background: #5E452C;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(122, 90, 58, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(122, 90, 58, 0.2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--sand);
            border: 1px solid var(--cocoa);
            border-radius: 999px;
            padding: 0.8rem 2rem;
            font-size: 1rem;
            font-weight: 500;
            transition: background .2s, border-color .2s, transform .2s;
        }

        .btn-outline:hover {
            background: rgba(166, 124, 82, 0.08);
            border-color: var(--sand);
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(46, 42, 36, 0.88), rgba(122, 90, 58, 0.62) 55%, rgba(122, 90, 58, 0.35));
            z-index: 1;
        }

        .hero-section>* {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.28);
            border-radius: 999px;
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.9);
            letter-spacing: 0.04em;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .hero-metric {
            flex: 1 1 120px;
            min-width: 120px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 0.75rem;
            padding: 0.75rem 1rem;
            text-align: center;
            backdrop-filter: blur(4px);
        }

        .hero-metric .num {
            font-size: 1.5rem;
            font-weight: 700;
            color: #EFE3C8;
            line-height: 1.3;
        }

        .hero-metric .label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Pain section */
        .pain-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }

        @media (min-width: 1024px) {
            .pain-grid {
                grid-template-columns: 0.9fr 1.1fr;
                gap: 4rem;
            }
        }

        .pain-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .pain-list li {
            background: #fff;
            border-radius: 1rem;
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: flex-start;
            gap: 0.85rem;
            border-left: 3px solid var(--cocoa);
            transition: box-shadow .2s, transform .2s;
        }

        .pain-list li:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .pain-list .icon {
            flex-shrink: 0;
            width: 1.75rem;
            height: 1.75rem;
            border-radius: 9999px;
            background: rgba(166, 124, 82, 0.12);
            color: var(--sand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--cocoa);
            margin-bottom: 1rem;
            border: 1px solid rgba(166, 124, 82, 0.35);
            border-radius: 999px;
            padding: 0.25rem 1rem;
        }

        .section-title {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            font-size: clamp(1.75rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            margin: 0 0 1rem;
        }

        .section-sub {
            color: var(--ink-soft);
            font-size: 1.05rem;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Service split */
        .service-split {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .service-split {
                grid-template-columns: 1fr 1fr;
                gap: 4rem;
            }
        }

        .service-image {
            border-radius: 1.25rem;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .service-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .service-card {
            background: #fff;
            border-radius: 1rem;
            padding: 1.5rem;
            border: 1px solid var(--line);
            transition: box-shadow .2s, transform .2s;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .service-card .step-num {
            font-family: "Noto Serif SC", serif;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--gold);
            display: inline-block;
            margin-bottom: 0.4rem;
        }

        /* Process */
        .process-section {
            background: #fff;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.25rem;
        }

        .process-step {
            background: var(--cream);
            border-radius: 1rem;
            padding: 1.5rem;
            position: relative;
            border-top: 3px solid var(--cocoa);
            transition: box-shadow .2s, transform .2s;
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .process-step .step-idx {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.08em;
            display: block;
            margin-bottom: 0.5rem;
        }

        .process-step h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 0 0 0.5rem;
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--ink-soft);
            margin: 0;
            line-height: 1.6;
        }

        /* Stats */
        .stats-section {
            background: var(--ink);
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem 0.75rem;
        }

        .stat-item .stat-num {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
            font-family: "Noto Serif SC", serif;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.5rem;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: 1rem;
            border: 1px solid var(--line);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: box-shadow .2s, border-color .2s;
        }

        .faq-item.open {
            box-shadow: var(--shadow-card);
            border-color: rgba(166, 124, 82, 0.4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            background: none;
            border: none;
            padding: 1.25rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: -2px;
        }

        .faq-icon {
            width: 1.5rem;
            height: 1.5rem;
            flex-shrink: 0;
            border-radius: 9999px;
            background: rgba(166, 124, 82, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--sand);
            transition: transform .3s ease, background .2s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--sand);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .3s ease;
            padding: 0 1.5rem;
            color: var(--ink-soft);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-bottom: 1.25rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--sand) 0%, #5E452C 70%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 260px;
            height: 260px;
            border-radius: 9999px;
            background: rgba(201, 162, 39, 0.12);
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 0.75rem;
            letter-spacing: 0.04em;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.6);
            transition: color .2s;
        }

        .site-footer a:hover {
            color: var(--gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }

        /* Mobile nav */
        @media (max-width: 900px) {
            .menu-toggle {
                display: inline-flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 0.5rem);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(255, 255, 255, 0.92);
                backdrop-filter: blur(16px);
                border-radius: 1.25rem;
                padding: 1rem;
                gap: 0.25rem;
                box-shadow: 0 12px 32px rgba(80, 60, 40, 0.18);
                border: 1px solid rgba(255, 255, 255, 0.6);
            }

            .site-nav.open .nav-links {
                display: flex;
            }

            .nav-links a {
                padding: 0.75rem 1rem;
                font-size: 1rem;
            }

            .nav-cta {
                margin-left: auto;
            }

            .site-nav.open .nav-cta {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .nav-logo {
                font-size: 0.95rem;
            }

            .nav-cta {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
        }

/* roulang page: article */
:root {
  --color-sand: #A67C52;
  --color-cocoa: #7A5A3A;
  --color-gold: #C9A227;
  --color-cream: #F8F4EE;
  --color-ink: #2E2A24;
  --color-body: #6B5F53;
  --color-faint: #A99E92;
  --color-line: #E5DDD2;
  --color-error: #B5473A;
  --radius-card: 1rem;
  --radius-btn: 9999px;
  --shadow-card: 0 8px 30px rgba(80, 60, 40, 0.08);
  --shadow-hover: 0 14px 40px rgba(80, 60, 40, 0.16);
  --transition: 0.25s ease;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
}
h1, h2, h3, h4, .font-serif {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
}
.container-x {
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 640px) {
  .container-x {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}
@media (min-width: 1024px) {
  .container-x {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}
.shadow-card {
  box-shadow: var(--shadow-card);
}
.shadow-card-hover {
  transition: box-shadow var(--transition), transform var(--transition);
}
.shadow-card-hover:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.75rem;
  padding: 0 1.5rem;
  border-radius: var(--radius-btn);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-cocoa);
  color: #fff;
}
.btn-primary:hover {
  background: #5E452C;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(122, 90, 58, 0.18);
}
.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.5);
}
.btn-primary:active {
  transform: translateY(0);
  background: #4A3621;
}
.btn-secondary {
  border-color: var(--color-sand);
  color: var(--color-cocoa);
  background: transparent;
}
.btn-secondary:hover {
  background: rgba(166, 124, 82, 0.12);
  transform: translateY(-2px);
}
.btn-secondary:active {
  transform: translateY(0);
  background: rgba(166, 124, 82, 0.18);
}
.site-header {
  position: fixed;
  top: 1rem;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  justify-content: center;
  padding: 0 1rem;
  pointer-events: none;
}
.site-nav {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 9999px;
  padding: 0.6rem 0.9rem;
  box-shadow: 0 6px 28px rgba(80, 60, 40, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.4);
  max-width: 100%;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-ink);
  padding: 0.25rem 0.5rem;
  white-space: nowrap;
}
.nav-logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 9999px;
  background: var(--color-gold);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links li a {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink);
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.nav-links li a:hover {
  background: rgba(166, 124, 82, 0.14);
  color: var(--color-cocoa);
}
.nav-links li a.active {
  background: rgba(166, 124, 82, 0.2);
  color: var(--color-cocoa);
  font-weight: 600;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.35rem;
  padding: 0 1.2rem;
  border-radius: 9999px;
  background: var(--color-cocoa);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.25s ease, transform 0.25s ease;
  white-space: nowrap;
}
.nav-cta:hover {
  background: #5E452C;
  transform: translateY(-1px);
}
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 9999px;
  cursor: pointer;
  color: var(--color-ink);
}
@media (max-width: 768px) {
  .site-nav {
    flex-wrap: wrap;
    border-radius: 1.5rem;
    padding: 0.75rem 1rem;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links li a {
    display: block;
    padding: 0.7rem 1rem;
  }
  .nav-cta {
    display: none;
    width: 100%;
    height: 2.75rem;
    margin-top: 0.25rem;
  }
  .site-nav.open .nav-cta {
    display: inline-flex;
  }
}
.article-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--color-ink);
}
.article-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
}
.article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(46, 42, 36, 0.92), rgba(46, 42, 36, 0.75) 55%, rgba(46, 42, 36, 0.45));
}
.article-hero-content {
  position: relative;
  padding-top: 8rem;
  padding-bottom: 4rem;
}
@media (min-width: 768px) {
  .article-hero-content {
    padding-top: 10rem;
    padding-bottom: 5rem;
  }
}
.breadcrumb {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.2rem;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--color-gold);
}
.breadcrumb span {
  color: rgba(255, 255, 255, 0.5);
}
.article-hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.25;
  font-weight: 700;
  margin: 0 0 1.5rem;
  max-width: 48rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}
.hero-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.5);
}
.hero-tag {
  display: inline-block;
  background: rgba(201, 162, 39, 0.22);
  border: 1px solid rgba(201, 162, 39, 0.4);
  color: #f0d28d;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.article-section {
  padding: 3rem 0 4rem;
}
@media (min-width: 768px) {
  .article-section {
    padding: 4rem 0 5rem;
  }
}
.article-body {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}
@media (min-width: 768px) {
  .article-body {
    padding: 2.75rem;
  }
}
.article-body p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #3A352F;
  margin: 0 0 1.5em;
}
.article-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 2.2em 0 0.8em;
  line-height: 1.35;
  color: var(--color-ink);
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.8em 0 0.6em;
  line-height: 1.4;
  color: var(--color-ink);
}
.article-body ul,
.article-body ol {
  margin: 0 0 1.5em;
  padding-left: 1.5rem;
  color: #3A352F;
  line-height: 1.8;
}
.article-body li {
  margin-bottom: 0.4em;
}
.article-body blockquote {
  border-left: 4px solid var(--color-gold);
  background: rgba(201, 162, 39, 0.08);
  padding: 1rem 1.25rem;
  margin: 1.5em 0;
  border-radius: 0 0.75rem 0.75rem 0;
  color: var(--color-body);
  font-style: normal;
  line-height: 1.8;
}
.article-body img {
  border-radius: 0.75rem;
  margin: 1.5em 0;
  width: 100%;
  object-fit: cover;
}
.article-body a {
  color: var(--color-cocoa);
  border-bottom: 1px solid rgba(122, 90, 58, 0.35);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.article-body a:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--color-line);
  margin: 2.5em 0;
}
.article-body code {
  background: #F3EDE4;
  padding: 0.15em 0.4em;
  border-radius: 0.375rem;
  font-size: 0.9em;
}
.article-body pre {
  background: var(--color-ink);
  color: #f5f0e8;
  padding: 1.25rem;
  border-radius: 0.75rem;
  overflow-x: auto;
  margin: 1.5em 0;
  line-height: 1.6;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
}
.article-tags span.tag {
  display: inline-block;
  background: rgba(166, 124, 82, 0.12);
  color: var(--color-cocoa);
  font-size: 0.85rem;
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  border: 1px solid rgba(166, 124, 82, 0.18);
}
.related-section {
  padding: 4rem 0;
  background: var(--color-cream);
}
@media (min-width: 768px) {
  .related-section {
    padding: 5rem 0;
  }
}
.related-card {
  display: block;
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.related-card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.related-card-title {
  font-size: 1.15rem;
  font-weight: 650;
  line-height: 1.45;
  margin: 0.6rem 0 0.5rem;
  color: var(--color-ink);
}
.related-card-text {
  font-size: 0.95rem;
  color: var(--color-body);
  line-height: 1.65;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-faint);
}
.related-card-meta .read-more {
  color: var(--color-cocoa);
  font-weight: 500;
  transition: color 0.2s ease;
}
.related-card:hover .read-more {
  color: var(--color-gold);
}
.faq-section {
  padding: 4rem 0;
  background: #fff;
}
@media (min-width: 768px) {
  .faq-section {
    padding: 5rem 0;
  }
}
.faq-item {
  border: 1px solid var(--color-line);
  border-radius: 1rem;
  background: #fff;
  margin-bottom: 0.85rem;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq-item:hover {
  border-color: rgba(166, 124, 82, 0.35);
}
.faq-item.open {
  border-color: rgba(201, 162, 39, 0.5);
  box-shadow: 0 4px 20px rgba(80, 60, 40, 0.06);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-ink);
  text-align: left;
  line-height: 1.5;
}
.faq-plus {
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--color-cocoa);
  line-height: 1;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-plus {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 1.25rem;
  color: var(--color-body);
  font-size: 0.975rem;
  line-height: 1.8;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 1.25rem;
}
.cta-section {
  padding: 4rem 0;
  background: var(--color-ink);
  color: #fff;
}
@media (min-width: 768px) {
  .cta-section {
    padding: 5rem 0;
  }
}
.cta-form-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1.25rem;
  padding: 1.5rem;
}
@media (min-width: 768px) {
  .cta-form-card {
    padding: 2rem;
  }
}
.cta-form-card label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.35rem;
}
.cta-form-card input,
.cta-form-card textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.cta-form-card input::placeholder,
.cta-form-card textarea::placeholder {
  color: rgba(255, 255, 255, 0.45);
}
.cta-form-card input:focus,
.cta-form-card textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.25);
  background: rgba(255, 255, 255, 0.12);
}
.cta-form-card textarea {
  min-height: 110px;
  resize: vertical;
}
.form-success {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #e6c87d;
  display: none;
}
.form-success.visible {
  display: block;
}
.cta-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}
.cta-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.75);
}
.cta-list li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 9999px;
  background: var(--color-gold);
  flex-shrink: 0;
}
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.7);
}
.footer-title {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
}
.site-footer a {
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s ease;
}
.site-footer a:hover {
  color: var(--color-gold);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  font-size: 0.875rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
}

/* roulang page: category2 */
:root {
    --color-sand: #7A5A3A;
    --color-cocoa: #5E452C;
    --color-gold: #C9A227;
    --color-cream: #F8F4EE;
    --color-ink: #2E2A24;
    --color-card: #FFFFFF;
    --color-body: #2E2A24;
    --color-muted: #6B5F53;
    --color-faint: #A99E92;
    --color-line: #E5DDD2;
    --color-error: #B5473A;
    --radius-card: 16px;
    --radius-btn: 999px;
    --shadow-card: 0 8px 30px rgba(80,60,40,0.08);
    --shadow-hover: 0 14px 40px rgba(80,60,40,0.16);
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--color-cream);
    color: var(--color-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  img { max-width: 100%; height: auto; display: block; }
  a { text-decoration: none; color: inherit; transition: color .25s ease; }
  button { font-family: inherit; cursor: pointer; }

  .container-x {
    max-width: 72rem;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }
  @media (min-width: 640px) {
    .container-x { padding-left: 1.5rem; padding-right: 1.5rem; }
  }
  @media (min-width: 1024px) {
    .container-x { padding-left: 2rem; padding-right: 2rem; }
  }

  /* ───────────── 悬浮胶囊导航 ───────────── */
  .site-header {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 50;
    width: calc(100% - 1.5rem);
    max-width: 76rem;
  }

  .site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: rgba(255,255,255,0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 999px;
    padding: 0.55rem 1.25rem 0.55rem 1.5rem;
    box-shadow: 0 4px 24px rgba(80,60,40,0.10);
    border: 1px solid rgba(255,255,255,0.6);
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-ink);
    white-space: nowrap;
    letter-spacing: 0.02em;
  }

  .nav-logo-dot {
    width: 10px;
    height: 10px;
    background: var(--color-gold);
    border-radius: 999px;
    flex-shrink: 0;
    box-shadow: 0 0 0 3px rgba(201,162,39,0.18);
  }

  .nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.15rem;
  }

  .nav-links a {
    display: block;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-muted);
    transition: all .25s ease;
  }

  .nav-links a:hover {
    color: var(--color-sand);
    background: rgba(166,124,82,0.10);
  }

  .nav-links a.active {
    background: rgba(166,124,82,0.16);
    color: var(--color-sand);
    font-weight: 600;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sand);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.45rem 1.4rem;
    border-radius: 999px;
    transition: all .25s ease;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(122,90,58,0.25);
  }

  .nav-cta:hover {
    background: var(--color-cocoa);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(122,90,58,0.3);
  }

  .nav-cta:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(201,162,39,0.5);
  }

  .menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-ink);
    padding: 0.35rem;
    border-radius: 0.5rem;
    align-items: center;
    justify-content: center;
  }

  .menu-toggle:focus-visible {
    outline: 2px solid var(--color-gold);
  }

  @media (max-width: 1023px) {
    .site-header { top: 0.75rem; }
    .site-nav {
      flex-wrap: wrap;
      border-radius: 24px;
      padding: 0.75rem 1rem;
    }
    .menu-toggle { display: inline-flex; }
    .nav-links {
      display: none;
      width: 100%;
      flex-direction: column;
      align-items: stretch;
      padding: 0.5rem 0 0.25rem;
      gap: 0.25rem;
    }
    .nav-links.open {
      display: flex;
    }
    .nav-links a {
      padding: 0.7rem 1rem;
      border-radius: 12px;
    }
    .nav-cta {
      display: none;
    }
    .nav-links.open .nav-cta-mobile {
      display: inline-flex !important;
      margin-top: 0.5rem;
      justify-content: center;
      background: var(--color-sand);
      color: #fff;
      padding: 0.7rem 1rem;
      border-radius: 999px;
      width: 100%;
    }
  }

  /* ───────────── 通用区块 ───────────── */
  .section { padding: 4rem 0; }
  @media (min-width: 768px) { .section { padding: 6rem 0; } }

  .section-title {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-ink);
    letter-spacing: 0.01em;
  }

  .section-sub {
    color: var(--color-muted);
    font-size: 1.0625rem;
    line-height: 1.7;
    max-width: 46rem;
    margin-top: 0.75rem;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-sand);
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
  }
  .eyebrow::before {
    content: "";
    width: 18px;
    height: 2px;
    background: var(--color-gold);
    border-radius: 2px;
  }

  /* ───────────── 按钮 ───────────── */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--color-sand);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.8rem 2rem;
    border-radius: 999px;
    border: none;
    box-shadow: 0 4px 14px rgba(122,90,58,0.2);
    transition: all .25s ease;
  }

  .btn-primary:hover {
    background: var(--color-cocoa);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(122,90,58,0.3);
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(122,90,58,0.2);
  }

  .btn-primary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(201,162,39,0.4);
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--color-sand);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.7rem 1.8rem;
    border-radius: 999px;
    border: 1px solid #A67C52;
    transition: all .25s ease;
  }

  .btn-secondary:hover {
    background: rgba(166,124,82,0.08);
    transform: translateY(-2px);
  }

  .btn-secondary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(201,162,39,0.3);
    border-color: var(--color-gold);
  }

  /* ───────────── 卡片 ───────────── */
  .card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(80,60,40,0.08);
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.8);
    transition: all .35s ease;
  }

  .card:hover {
    box-shadow: 0 14px 40px rgba(80,60,40,0.16);
    transform: translateY(-3px);
    border-color: rgba(166,124,82,0.25);
  }

  .badge {
    display: inline-flex;
    align-items: center;
    background: rgba(166,124,82,0.12);
    color: var(--color-sand);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    letter-spacing: 0.02em;
  }

  /* ───────────── 手风琴 ───────────── */
  .faq-item {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(80,60,40,0.05);
    border: 1px solid rgba(229,221,210,0.7);
    overflow: hidden;
    transition: box-shadow .3s ease;
  }

  .faq-item:hover {
    box-shadow: 0 8px 24px rgba(80,60,40,0.10);
  }

  .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    font-size: 1.015rem;
    font-weight: 600;
    color: var(--color-ink);
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    transition: color .2s ease;
  }

  .faq-question:hover { color: var(--color-sand); }

  .faq-icon {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--color-sand);
    border-radius: 2px;
    transition: all .3s ease;
  }
  .faq-icon::before {
    left: 50%;
    top: 50%;
    width: 14px;
    height: 2px;
    transform: translate(-50%, -50%);
  }
  .faq-icon::after {
    left: 50%;
    top: 50%;
    width: 2px;
    height: 14px;
    transform: translate(-50%, -50%);
  }

  .faq-item.active .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .3s ease;
    padding: 0 1.5rem;
    color: var(--color-muted);
    font-size: 0.94rem;
    line-height: 1.75;
  }

  .faq-item.active .faq-answer {
    max-height: 400px;
    padding-bottom: 1.4rem;
  }

  /* ───────────── 流程区块 ───────────── */
  .step-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-gold);
    border: 1.5px solid rgba(201,162,39,0.45);
    border-radius: 999px;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(201,162,39,0.06);
  }

  /* ───────────── 页脚 ───────────── */
  .site-footer {
    background: var(--color-ink);
    color: #fff;
    color: rgba(255,255,255,0.65);
  }

  .site-footer a { color: rgba(255,255,255,0.55); transition: color .25s ease; }
  .site-footer a:hover { color: var(--color-gold); }
  .site-footer h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
  }
  .footer-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.35);
  }

  /* ───────────── Hero ───────────── */
  .hero {
    min-height: 88vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 7rem 0 4rem;
    overflow: hidden;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }

  .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(46,42,36,0.82) 0%, rgba(46,42,36,0.55) 55%, rgba(122,90,58,0.25) 100%);
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 46rem;
  }

  @media (max-width: 767px) {
    .hero {
      min-height: 75vh;
      padding: 6rem 0 3rem;
    }
    .hero-content {
      max-width: 100%;
    }
  }

  /* ───────────── 图文交替 ───────────── */
  .split-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
  }

  @media (min-width: 900px) {
    .split-row {
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
    }
  }

  .split-img {
    border-radius: 16px;
    box-shadow: 0 10px 36px rgba(80,60,40,0.14);
    overflow: hidden;
    height: 100%;
    min-height: 260px;
    object-fit: cover;
    width: 100%;
  }

  /* ───────────── 数字卡片 ───────────── */
  .stat-number {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1.2;
  }

  /* ───────────── 最终CTA ───────────── */
  .cta-box {
    background: var(--color-sand);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
  }

  @media (min-width: 768px) {
    .cta-box {
      padding: 4rem 4rem;
    }
  }

  /* ───────────── 工具类 ───────────── */
  .bg-deep-dark { background: var(--color-ink); color: rgba(255,255,255,0.75); }
  .text-gold { color: var(--color-gold); }
  .text-muted { color: var(--color-muted); }

  .img-shadow { box-shadow: 0 10px 36px rgba(80,60,40,0.14); }

  @media (max-width: 640px) {
    .hero h1 { font-size: 2rem !important; }
    .section { padding: 3rem 0; }
  }

/* roulang page: category3 */
:root {
      --sand: #7A5A3A;
      --cocoa: #A67C52;
      --gold: #C9A227;
      --cream: #F8F4EE;
      --ink: #2E2A24;
      --ink-light: #6B5F53;
      --ink-lighter: #A99E92;
      --line: #E5DDD2;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--cream);
      color: var(--ink);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    .container-x {
      max-width: 72rem;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    @media (min-width: 640px) {
      .container-x {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
      }
    }

    @media (min-width: 1024px) {
      .container-x {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    /* 悬浮胶囊导航 */
    .site-header {
      position: fixed;
      top: 1rem;
      left: 50%;
      transform: translateX(-50%);
      z-index: 50;
      width: 95%;
      max-width: 72rem;
    }

    .site-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.72);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-radius: 9999px;
      padding: 0.5rem 0.75rem 0.5rem 1.25rem;
      box-shadow: 0 8px 30px rgba(80, 60, 40, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.65);
      transition: box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .site-nav:hover {
      box-shadow: 0 14px 40px rgba(80, 60, 40, 0.14);
      border-color: rgba(255, 255, 255, 0.85);
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--ink);
      white-space: nowrap;
      text-decoration: none;
    }

    .nav-logo-dot {
      width: 0.75rem;
      height: 0.75rem;
      border-radius: 9999px;
      background: var(--gold);
      box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.2);
      flex-shrink: 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0.25rem;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .nav-links a {
      display: inline-block;
      padding: 0.5rem 0.875rem;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--ink-light);
      text-decoration: none;
      transition: all 0.25s ease;
    }

    .nav-links a:hover {
      color: var(--sand);
      background: rgba(166, 124, 82, 0.08);
    }

    .nav-links a.active {
      color: var(--sand);
      background: rgba(166, 124, 82, 0.14);
      font-weight: 600;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--sand);
      color: #fff;
      font-size: 0.875rem;
      font-weight: 600;
      padding: 0.5rem 1.25rem;
      border-radius: 9999px;
      white-space: nowrap;
      text-decoration: none;
      transition: all 0.25s ease;
      box-shadow: 0 4px 14px rgba(122, 90, 58, 0.2);
    }

    .nav-cta:hover {
      background: #5E452C;
      transform: translateY(-1px);
      box-shadow: 0 8px 22px rgba(122, 90, 58, 0.3);
    }

    .nav-cta:focus-visible,
    .nav-links a:focus-visible,
    .nav-logo:focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 3px;
    }

    .menu-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      width: 2.75rem;
      height: 2.75rem;
      border-radius: 9999px;
      background: rgba(255, 255, 255, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.6);
      color: var(--sand);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .menu-toggle:hover {
      background: rgba(255, 255, 255, 0.9);
    }

    @media (max-width: 940px) {
      .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-radius: 1.5rem;
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.375rem;
        box-shadow: 0 20px 50px rgba(80, 60, 40, 0.16);
        border: 1px solid rgba(255, 255, 255, 0.8);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links a {
        padding: 0.75rem 1rem;
        text-align: center;
      }
      .nav-cta {
        display: none;
      }
      .menu-toggle {
        display: inline-flex;
      }
    }

    /* Hero */
    .hero-cat {
      position: relative;
      display: flex;
      align-items: center;
      min-height: 86vh;
    }

    .hero-cat .hero-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
    }

    .hero-cat::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(110deg, rgba(38, 32, 26, 0.88) 0%, rgba(60, 45, 30, 0.72) 50%, rgba(122, 90, 58, 0.42) 100%);
      z-index: 1;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: #fff;
      background: rgba(255, 255, 255, 0.14);
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 0.375rem 0.875rem;
      border-radius: 9999px;
      text-transform: uppercase;
    }

    .badge::before {
      content: "";
      width: 0.375rem;
      height: 0.375rem;
      border-radius: 9999px;
      background: var(--gold);
    }

    /* 通用 section 标签 */
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--sand);
      background: rgba(166, 124, 82, 0.12);
      padding: 0.375rem 0.875rem;
      border-radius: 9999px;
      text-transform: uppercase;
    }

    .section-tag::before {
      content: "";
      width: 0.375rem;
      height: 0.375rem;
      border-radius: 9999px;
      background: var(--gold);
    }

    /* 按钮 */
    .btn-primary,
    .btn-secondary,
    .btn-secondary-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 0.75rem 1.875rem;
      border-radius: 9999px;
      text-decoration: none;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      box-shadow: 0 8px 24px rgba(80, 60, 40, 0.12);
    }

    .btn-primary {
      background: var(--sand);
      color: #fff;
    }

    .btn-primary:hover {
      background: #5E452C;
      transform: translateY(-2px);
      box-shadow: 0 14px 34px rgba(80, 60, 40, 0.22);
    }

    .btn-secondary {
      border: 1px solid var(--cocoa);
      color: var(--sand);
      background: transparent;
      box-shadow: none;
    }

    .btn-secondary:hover {
      background: rgba(166, 124, 82, 0.1);
      border-color: var(--sand);
    }

    .btn-secondary-light {
      border: 1px solid rgba(255, 255, 255, 0.55);
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
      box-shadow: none;
    }

    .btn-secondary-light:hover {
      background: rgba(255, 255, 255, 0.14);
      border-color: rgba(255, 255, 255, 0.8);
    }

    .btn-primary:focus-visible,
    .btn-secondary:focus-visible,
    .btn-secondary-light:focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 3px;
    }

    /* 卡片 */
    .card {
      background: #fff;
      border-radius: 1rem;
      padding: 1.5rem;
      box-shadow: 0 8px 30px rgba(80, 60, 40, 0.06);
      border: 1px solid rgba(229, 221, 210, 0.5);
      transition: all 0.3s ease;
    }

    .card:hover {
      box-shadow: 0 14px 40px rgba(80, 60, 40, 0.12);
      transform: translateY(-3px);
      border-color: rgba(166, 124, 82, 0.3);
    }

    .pain-item {
      display: flex;
      align-items: flex-start;
      gap: 0.875rem;
      background: #fff;
      border-radius: 1rem;
      padding: 1.125rem 1.25rem;
      box-shadow: 0 4px 18px rgba(80, 60, 40, 0.05);
      border: 1px solid rgba(229, 221, 210, 0.4);
      transition: all 0.25s ease;
    }

    .pain-item:hover {
      border-color: rgba(166, 124, 82, 0.35);
      box-shadow: 0 8px 26px rgba(80, 60, 40, 0.1);
      transform: translateX(4px);
    }

    .pain-icon {
      flex-shrink: 0;
      width: 2.25rem;
      height: 2.25rem;
      border-radius: 9999px;
      background: rgba(198, 162, 110, 0.14);
      color: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.875rem;
    }

    /* 序号标签 */
    .step-num {
      font-family: "Noto Serif SC", serif;
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--gold);
      letter-spacing: 0.1em;
      border: 1px solid rgba(201, 162, 39, 0.3);
      border-radius: 9999px;
      padding: 0.25rem 0.75rem;
      display: inline-block;
      background: rgba(201, 162, 39, 0.08);
    }

    /* 统计数字 */
    .stat-number {
      font-family: "Noto Serif SC", serif;
      font-size: 3.5rem;
      font-weight: 700;
      line-height: 1.1;
      color: var(--gold);
    }

    @media (min-width: 768px) {
      .stat-number {
        font-size: 4.5rem;
      }
    }

    /* 流程步骤 */
    .process-step {
      position: relative;
      padding: 1.75rem;
      background: #fff;
      border-radius: 1.25rem;
      box-shadow: 0 8px 30px rgba(80, 60, 40, 0.06);
      border: 1px solid rgba(229, 221, 210, 0.5);
      transition: all 0.3s ease;
    }

    .process-step:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 44px rgba(80, 60, 40, 0.12);
    }

    .process-num {
      width: 3rem;
      height: 3rem;
      border-radius: 9999px;
      background: rgba(166, 124, 82, 0.1);
      color: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.125rem;
      margin-bottom: 1.25rem;
      transition: background 0.3s ease, color 0.3s ease;
    }

    .process-step:hover .process-num {
      background: var(--sand);
      color: #fff;
    }

    /* FAQ */
    .faq-item {
      background: #fff;
      border-radius: 1rem;
      border: 1px solid rgba(229, 221, 210, 0.6);
      overflow: hidden;
      transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }

    .faq-item.open {
      border-color: rgba(166, 124, 82, 0.35);
      box-shadow: 0 10px 30px rgba(80, 60, 40, 0.06);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.25rem 1.5rem;
      text-align: left;
      font-size: 1.0625rem;
      font-weight: 600;
      color: var(--ink);
      background: transparent;
      border: none;
      cursor: pointer;
      transition: color 0.25s ease;
    }

    .faq-question:hover {
      color: var(--sand);
    }

    .faq-question:focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: -2px;
    }

    .faq-icon {
      flex-shrink: 0;
      width: 1.75rem;
      height: 1.75rem;
      border-radius: 9999px;
      background: rgba(166, 124, 82, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.125rem;
      color: var(--sand);
      transition: transform 0.35s ease, background 0.25s ease, color 0.25s ease;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--gold);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
    }

    .faq-answer-inner {
      padding: 0 1.5rem 1.375rem;
      color: var(--ink-light);
      font-size: 0.9375rem;
      line-height: 1.8;
    }

    /* 表单 */
    .form-input {
      width: 100%;
      background: rgba(255, 255, 255, 0.92);
      border: 1px solid rgba(229, 221, 210, 0.6);
      border-radius: 0.75rem;
      padding: 0.75rem 1rem;
      font-size: 0.9375rem;
      color: var(--ink);
      transition: all 0.25s ease;
    }

    .form-input:focus {
      outline: none;
      border-color: var(--gold);
      box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.2);
    }

    .form-input::placeholder {
      color: var(--ink-lighter);
    }

    .form-label {
      display: block;
      font-size: 0.875rem;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 0.375rem;
    }

    /* Footer */
    .site-footer {
      background: var(--ink);
      color: rgba(255, 255, 255, 0.65);
    }

    .footer-title {
      font-size: 0.9375rem;
      font-weight: 600;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 1rem;
    }

    .site-footer a {
      color: rgba(255, 255, 255, 0.55);
      text-decoration: none;
      transition: color 0.25s ease;
    }

    .site-footer a:hover {
      color: var(--gold);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      margin-top: 3rem;
      padding-top: 1.5rem;
      display: flex;
      justify-content: center;
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.4);
    }

    /* 返回顶部 */
    .back-top {
      position: fixed;
      right: 1.5rem;
      bottom: 1.5rem;
      z-index: 40;
      width: 2.75rem;
      height: 2.75rem;
      border-radius: 9999px;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(229, 221, 210, 0.6);
      color: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      box-shadow: 0 8px 20px rgba(80, 60, 40, 0.1);
      transition: all 0.25s ease;
      opacity: 0;
      pointer-events: none;
    }

    .back-top.show {
      opacity: 1;
      pointer-events: auto;
    }

    .back-top:hover {
      background: var(--sand);
      color: #fff;
      transform: translateY(-2px);
    }